Molding-press



(No Model.)

a sheets-sheet 1.

G. W. VAN TINE.

MOLDING PRESS.

Patented Oct. 20, 1896.

m: N oooooo 1:

INVENTOR:

6% P h AT NEY (No Modl.) 3 Sheets Sheet 2.

G. W. VAN TINE.

MOLDING PRESS.

Patented Oct. 20, 1896.

INVENTUR,

ATTORNEY,

jWITNESSES (No Model.) 7 3 SheetsSheet 3.

G. W. VAN TINE. MOLDING PRESS.

Patented Oct. 20, 1896.

4 INVENTOR: W741.

BY AT UNITED STATES PATENT EEicE,

GEORGE \V. VAN TINE, OF BAYONNE, NEW JERSEY.

MOLDING-PRESS.

SPECIFICATION forming part of Letters Patent No. 569,690, dated October20, 1896.

Application filed October 25, 1893. Serial No. 489,125. (No model.)

To all whom, it nuty concern.-

Be it known that I, GEORGE WV. VAN TINE, a citizen of the United States,residing at Bayonne, in the county of Hudson and State of New Jersey,have invented certain new and useful Improvements in Molding-Presses, ofwhich the following is a specification, reterence being bad therein tothe accompanying drawings.

My invention relates to that class of moldingpresses provided withswinging sandboxes containing the patterns and carrying the halfflasks,in which latter the molds are formed by the pressing operation, theobject of my inven tion being to provide mechanical means for swingingor otherwise moving the said boxes in and out of the press, therebylightening the labor of working the presses, (particularly in thosepresses having large heavy sand-boxes) as well as expediting the work.To this end I provide a molding-press with horizontal pressure-cylindersin which work pistons connected to the movable or swinging sand-boxes insuch manner that by admitting water or other pressure fluid to the saidpressure-cylinders the sand-boxes may be swung or otherwise moved in orout of the press. I

In the accompanying drawings, Figure l is a side elevation, partlyinsection, of a molding-press embodying my invention. Figs. 2 and 3 areplan and cross-sctional views, respectively, of the same on a largerscale than Fig. 1. Fig. 4 is a detail plan view of the pressure-cylinderand rack for operating the swinging sandsboxes.

A denotes the base of the press, and B a table mounted on said base andserving as a support for the ram-cylinders O, in which work theplungersD, carrying the platens (1, said cylinders having supply anddischarge pipes 0, through which the pressure fluid enters and leavesthe cylinders. The presshead E is supported bysuitable posts orstandards F,surrounded bysleeves G, havingarms g, carrying the swingingsand-boxes H, which support the half-flasks II, in which the molds areformed.

The press herein shown is a large one having great capacity, there beingfour posts or standards F, each surrounded by a sleeve G, and'eachsleeve carries a double sandbox.

Mounted on arms or brackets a, extending outward from the base A, arehorizontal pressure-cylinders I, within which work pistons J, havingrods 7:, provided with double racks K, meshing with gears 9', attachedto the sleeves G. The cylinders I are provided with inlet and outletpipes L', extending to any suitable source of pressu re-suppl y.

From the foregoing it will be obvious that by admitting the water orother pressure medium to one end or the other of said cylinders I thepistons J therein will be moved to operate the racks K, connected by thegears g to the sleeves G, thereby swinging the sandboxes H in or out ofthe press, as may be desired, the double racks herein shown eachswinging two double sand-boxes in or out of the press, said doublesand-boxes moving around in opposite directions. \Vhile the two doublesan d-boxes operated by one of the racks K are in pressing position inthe press, the other two double boxes are thrown out ward in positionfor removing the molds and refilling the sand-boxes and half-flasks.

I do not wish to be understood as limiting my invention to the detailsherein shown, as it is obvious that these may be widely varied withoutdeparting from the spirit of my invention. For example, the sand-boxesmight be sliding ones instead of being carried by swinging arms, andmight therefore be operated directly from the plunger-cylinders insteadof through the medium of the racks and gears; also, single racks mightbe used to move a single sand-box or a single set thereof instead of thedouble racks for simultaneously operating two double sand-boxes; andother variations within the province of mechanical shill might also bemade in the details of my invention.

Having thus described my invention, I claim and desire to secure byLetters Patent 1. I11 a molding-press, the combination withpressure-cylinders, pistons working therein and racks operati velyconnected with said pistons, of swinging sand-boxes and gears engaged bysaid racks and operati rely con nccted with said sand-boxes.

2. In a moldingpress, the combination with the posts or standardsthereof, of sleeves surrounding said posts or standards and providedwith gears, sand-boxes carried by arms extending from said sleeves,pressure-eyiinders,

pistons working in said cylinders and racks engaging said gears andoperated from said pistons.

3. I11 a molding-press, the combination with the posts or standards F,of the sleeves Gr surrounding said posts and provided with the gears gand the arms g, sand-boxes I-I sup- :o ported by said arms,pressure-cylinders I, pistons J working therein, racks K engaging saidgears, and rods in connecting said racks with said pistons.

In testimony whereof I aifix my signature in presence of two witnesses.

GEORGE V. VAN TINE.

itnesses:

HENRY CALVER, J. F. JAQUITH.

